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Polystyrene-diethyl benzene heating-free solid phase saponification extraction column and preparation method and applications thereof

A technology of polystyrene and diethylbenzene, applied in chemical instruments and methods, separation methods, solid adsorbent liquid separation, etc., can solve problems such as time-consuming and labor-intensive, large material consumption, difficult to achieve rapid and effective analysis of samples, etc. Achieve the effect of convenient use, simple preparation method and good purification effect

Inactive Publication Date: 2018-12-07
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional saponification method is time-consuming and labor-intensive, and consumes a lot of materials, making it difficult to quickly and effectively analyze samples.

Method used

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  • Polystyrene-diethyl benzene heating-free solid phase saponification extraction column and preparation method and applications thereof
  • Polystyrene-diethyl benzene heating-free solid phase saponification extraction column and preparation method and applications thereof
  • Polystyrene-diethyl benzene heating-free solid phase saponification extraction column and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A polystyrene-diethylbenzene non-heating solid-phase saponification extraction column, including an empty column tube, in which an outlet sieve plate, a polystyrene-divinylbenzene particle packing layer, and an isolation sieve are sequentially arranged from bottom to top Plate and KOH powder packing layer, the inner diameter of the empty column tube is 0.3cm, the empty column tube is a disposable plastic syringe made of polypropylene, the height of the polystyrene-divinylbenzene particle packing layer is 0.5cm, polystyrene - Divinylbenzene particles are non-porous particles with a particle size of 3 μm to 100 μm, the height of the KOH powder packing layer is 0.5 cm, and the outlet sieve plate and isolation sieve plate are absorbent cotton.

[0034] The above-mentioned polystyrene-diethylbenzene non-heating solid-phase saponification extraction column preparation process is as follows:

[0035] S1. Take the empty column tube with an outlet at the lower end, and press the...

Embodiment 2

[0040] A polystyrene-diethylbenzene non-heating solid-phase saponification extraction column, including an empty column tube, in which an outlet sieve plate, a polystyrene-divinylbenzene particle packing layer, and an isolation sieve are sequentially arranged from bottom to top Plate and KOH powder packing layer, the inner diameter of the empty column tube is 2.5cm, the empty column tube is a commercial solid phase extraction column made of polytetrafluoroethylene, and the height of the polystyrene-divinylbenzene particle packing layer is 2.5cm , polystyrene-divinylbenzene particles are non-porous particles with a particle size of 3 μm to 100 μm, the height of the KOH powder packing layer is 2.5 cm, and the outlet sieve plate and isolation sieve plate are glass wool.

[0041] The preparation process of the polystyrene-diethylbenzene non-heating solid-phase saponification extraction column is the same as that of Example 1.

Embodiment 3

[0043] A polystyrene-diethylbenzene non-heating solid-phase saponification extraction column, including an empty column tube, in which an outlet sieve plate, a polystyrene-divinylbenzene particle packing layer, and an isolation sieve are sequentially arranged from bottom to top Plate and KOH powder packing layer, the inner diameter of the empty column tube is 5cm, the empty column tube is a commercial solid phase extraction column made of polyethylene, the height of the polystyrene-divinylbenzene particle packing layer is 3cm, and the styrene-divinylbenzene particle packing layer is 3cm. Divinylbenzene particles are porous particles with a particle size of 3 μm to 100 μm, and the pore size is The height of the KOH powder packing layer is 3cm, and the outlet sieve plate and isolation sieve plate are porous ceramics.

[0044] The preparation process of the polystyrene-diethylbenzene non-heating solid-phase saponification extraction column is the same as that of Example 1.

[0...

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Abstract

The invention discloses a polystyrene-diethyl benzene heating-free solid phase saponification extraction column and a preparation method and applications thereof. The extraction column comprises a hollow column. An outlet screen plate, a polystyrene-diethyl benzene particle filled layer, an isolation screen plate, and a KOH powder filled layer are arranged in the hollow column from bottom to top in sequence. The prepared extraction column can be used to preprocess lipid containing liquid. Compared with the prior art, the preparation method is simple, the saponification is obviously reduced, the steps of heating and solid phase extraction are eliminated, a large amount of time is saved, and the detection sensitivity and the work efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of extraction column preparation, in particular to a polystyrene-divinylbenzene non-heating solid-phase saponification extraction column and its preparation method and application. Background technique [0002] As a manifold sample pretreatment technique, saponification is often used to release target analytes from lipid sample matrices, such as converting glycerides into glycerol and fatty acid salts, thereby reducing the amount of organic phase in liquid-liquid extraction. load or disturbance. Saponification has been widely used for sample processing in the determination of some hydrophobic substances, such as tocopherols, polycyclic aromatic hydrocarbons, fat-soluble vitamins, phytosterols, carotenoids, mineral oil, polychlorinated biphenyls, cholesterol etc. [0003] The traditional liquid-liquid saponification reaction usually takes a long time and needs to be heated to reflux in a water bath or to us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D15/22B01D15/10B01D15/42G01N30/06
CPCB01D15/10B01D15/22B01D15/426G01N30/06G01N2030/062
Inventor 李建军
Owner NORTHWEST UNIV
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